Usage Tips:Description: This is a gas alarm sensor, remind you to monitor natural gas safety. A perfect safety tool used in motor home, marine, vehicles. It can detect the leakage of propane, butane, LPG, natural, town, common flammable gasses. It is very simple to use and convenient to install. Features:1. Unique design of alarm sensor body, high reliability sensor. Easy to install and operate. 2. Made of premium materials, safe and stable. Durable for long time use.3. The status of the indicator is red light alarm.4. Built in and output switch terminal pair for integration into external alarm system.5. It is applicable to vehicles,marine, such as motor home,boat,yacht and so on.Specifications:Condition:Brand Color:WhiteMaterial:Metal+PlasticOperating Voltage : 12V DCStandby Current : 90mAAlarm Current : 100mAWarm-up (stabilisation) Time: 10sPower Indicator : Green LEDAlarm Gas Level : 10 5 (% LEL), 0.5 0.25 (VOL %)Alarm Indicator: red LED, flashingAlarm Sound Level : 85dB/mOperating Temperature: -10C ~ +50CEnvironment Humidity : 95 % RHInstallation : wall-mountedSize: 11.5*7.2*4cm/4.53*2.83*1.57inWeight: 151gPackage Included:1 * Alarm Sensor1 * Screw Cap1 * ScrewNote:Please allow 0~1 inch error due to manual measurement. Thanks for your understanding..Please note that the type and old type of this product will be sent randomly, and make sure you will not mind before ordering.